Send POST data on redirect with JavaScript/jQuery?

per @Kevin-Reid's answer, here's an alternative to the "I ended up doing the following" example that avoids needing to name and then lookup the form object again by constructing the form specifically (using jQuery)..

var url = 'http://example.com/vote/' + Username;
var form = $('<form action="' + url + '" method="post">' +
  '<input type="text" name="api_url" value="' + Return_URL + '" />' +
  '</form>');
$('body').append(form);
form.submit();

Construct and fill out a hidden method=POST action="http://example.com/vote" form and submit it, rather than using window.location at all.

Here's a simple small function that can be applied anywhere as long as you're using jQuery.

var redirect = 'http://www.website.com/page?id=23231';
$.redirectPost(redirect, {x: 'example', y: 'abc'});

// jquery extend function
$.extend(
{
    redirectPost: function(location, args)
    {
        var form = '';
        $.each( args, function( key, value ) {
            value = value.split('"').join('\"')
            form += '<input type="hidden" name="'+key+'" value="'+value+'">';
        });
        $('<form action="' + location + '" method="POST">' + form + '</form>').appendTo($(document.body)).submit();
    }
});